Metallics JSHC34312 3/4-10 x 3...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$578.57
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Metallics JSHC34312 3/4-10 x 3-1/2 in. Socket Head Hex Cap Screws - Alloy Steel Black - Each

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Model: JSHC34312

In Stock (leaves warehouse same day if ordered before 3pm ET)

$578.57
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3/4-10 x 3-1/2 in. Socket Head Hex Cap Screws - Alloy Steel Black - 25qty

  • Additional Notes

    • Other sizes and quantities available by request | Cap screws of a length 3D or greater, where D equals the nominal diameter of the screw, are subject to tensile strength, yield strength, elongation and reduction of area testing.

  • Features

    • Socket head with Hex Drive
    • 3/4-10 Diameter, 3-1/2" Length
    • Supplies greater tensile strength than equivalent sizes of Grade-5 or Grade-8 hex head cap screws while requiring less surface area or counterbore since the fastener is intenally wrenched.
    • Elongation is 10% minimum (applies to machined specimens of lenglh at least 4D where D equals the nominal diameter of the screw) and Reduction of Area is 33% minimum (applies to machined specimens)
    • Alloy Steel Black Material

Manufacturer Resources

Product Specs

Minimum Purchase:
25 units
Arra Compliant:
N
Buy American Compliant:
No
Dimensional Standard:
ASME B18.3-2012
Division:
Electrical H1
Drive Type:
Hex
Fastener Head Height:
0.74 - 0.75 in.
Fastener Head Type:
Socket
Fastener Head Width:
1.107 - 1.125 in.
Fastener Length:
3/1/02
Field Application:
Electrical, Plumbing, Heating and Air Conditioning Industries
Hardness:
Rockwell C39
Hex Size:
8-May
Language Code:
EN
Neurspe:
https://ideadigitalasset.com/DAMRoot/Original/10035/11237_ID-SPE-v1-ID-SPE-v1-Socket_Head_Cap_Screw_Alloy_Zinc.pdf
Order Minimum Imperial:
25
Order Minimum Uom Imperial:
EA
Pack Type:
Jar
Product Group:
Fasteners
Product Height:
7.25 in
Product Length:
4.5 in
Product Weight:
5.26 lbs
Product Width:
4.5 in
Slot Depth:
0.37
Sub Division:
Electrical-E H2
Tensile Strength:
170000 psi minimum
Thread Per Inch:
10
Thread Type:
UN
Wall Thickness:
0.285
Yield Strength:
162000 psi minimum
Department:
Electrical
Product Subgroup:
Screws
Product Type:
Cap Screw
Type2:
Cap Screw
Series:
SHC
Product Finish:
Black
Product Details:
Cap Screw
Product Material:
Alloy Steel Black

Metallics JSHC34312 – Frequently Asked Questions

1) What thread does the Metallics JSHC34312 socket head cap screw have, and will it thread into a 3/4-10 tapped hole?
It is a 3/4-10 UN thread, 10 threads per inch, so it mates with any standard 3/4-10 UNC tapped hole or nut. Length is 3-1/2 inches under the head.
2) How strong is this alloy steel socket head cap screw compared to a Grade 5 or Grade 8 hex bolt?
Rated 170,000 psi minimum tensile and 162,000 psi minimum yield, with a hardness of Rockwell C39. That is more tensile capacity than a Grade 5 or Grade 8 hex head cap screw of the same size, and because the head is internally wrenched it needs less surface area or counterbore clearance.
3) What size counterbore do I need for a 3/4-10 socket head cap screw?
Size the counterbore off the head: the head measures 1.107 to 1.125 in. across and 0.74 to 0.75 in. tall. Bore at least 1-1/8 in. diameter for clearance, and at least 3/4 in. deep if you want the head fully below the surface.
4) Can I use these on a federally funded job with Buy American requirements?
No. The JSHC34312 is not Buy American compliant and is not ARRA compliant, with multiple countries of origin. If your contract carries domestic sourcing language, these will not satisfy it.
5) What size hex key drives the Metallics JSHC34312 cap screw?
It takes a hex (Allen) key, not a wrench on the outside of the head, since the socket head is internally wrenched. Socket depth is 0.37 in., so use a full-length key or bit that seats completely before you apply torque.
6) What standard are these Metallics socket head cap screws made to?
They are built to ASME B18.3-2012, the dimensional standard for socket head cap screws, so head and socket geometry interchange with any other B18.3 screw of the same size.
7) Is the black finish on these alloy steel cap screws suitable for outdoor or wet use?
The finish is plain black on alloy steel, which is a bare, non-plated surface. Keep these for dry interior structural, mechanical, and equipment-mounting work. For exposed or damp locations, go with a zinc-plated or stainless socket head cap screw of the same 3/4-10 x 3-1/2 size instead.
8) How are these sold, and is there a minimum order quantity?
Sold by the each with a 25 piece minimum, packed in a jar. The jar of 25 comes in at 5.26 lbs.
9) Are these 3/4-10 cap screws tested for tensile and yield, or just marked to a grade?
At 3-1/2 inches long, this screw exceeds 3 times its 3/4 in. nominal diameter, which puts it in the group subject to tensile strength, yield strength, elongation, and reduction of area testing. Elongation is 10 percent minimum and reduction of area 33 percent minimum on machined specimens.
10) What kind of work are Metallics SHC series cap screws normally used for?
They are stocked for the electrical, plumbing, heating and air conditioning trades: anchoring equipment, strut and bracket connections, motor and pump mounts, anywhere you want high-strength clamping in a hole too tight for a wrench on a hex head.
How fast can I get the Metallics JSHC34312 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Metallics JSHC34312 come with a warranty?
Absolutely. The Metallics JSHC34312 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Metallics JSHC34312?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Metallics JSHC34312 from ZenSupply?
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